Flue-cap



(N0 M odel.)

. 11 E. HEINIG.

- FLUE GAP.

No. 538,647. Patented Apr, 30, 1895.

' NITED STATES FREDERICK E. HEINIG, OF LOUISVILLE, KENTUCKY.

FLU E-CAP.

$EECIFICATION forming part of Letters Patent No. 538,647, dated April30, 1895.

Application filed October 30, 1891. Renewed October 6, 1894. Serial No.525,160. (No model.)

To all whom it may concern;

Be it known that I, FREDERICK E. I-IEINIG, of Louisville, in the countyof'Jefferson, in the State of Kentucky, have invented new and usefulImprovements in Flue-Caps, of which the following, taken in connectionwith the accompanying drawings, is a full, clear, and exact description.

This invention relates to improvements in flue caps and consists incertain details of construction and arrangement of parts, all ashereinafter more particularly specified and pointed out in the claims.

In the annexed drawings similar letters of reference denotecorresponding parts in all the views,in which- Figure 1 is a rearelevation of my improved flue-cap. Fig. 2 is a top plan view, partiallybroken away, of the same with a stovepipe projected therein as in use.Fig. 3 is a side view of the frame composed of two parts, which I use tosupport the movable door of my flue-cap. Fig. 4 is a broken view of onecorner of the frame, showing the pintle-bearings for the door of thesame. Fig. 5 is a section of a portion of the door through the center ofthe tongue or stop. Fig. 6 is a perspective view, on a smaller scalethan Figs. 1 and 2, of the door with the stop in operative position.Fig. 7 is a detail view of the stop and its spring-support detached fromthe door.

I use a quadrangular frame with slightly beveled sides as the main shellof myvdevice in which are cast the sockets or bearings cin which areheld the pintles dof the door hung in said frame.

At the lower side of the frame A- I provide a stop b which holds thedoor D normally closed and which must be overcome by lifting the door Dout of engagement therewith before the door may be opened for theinsertion of a stove pipe in the opening shown by the dotted circularline in Fig. 1, which represents the opening provided through the faceplate B- through which the pipe is inserted.

I find that it is essential to cast the pintle bearings --cc integralwith the frame A partiallyopen so as to obviate the necessity of using acore in making the casting, and

the face-plate -B- abutting against the said bearings will be sufficientto form a side wall for the same on the outer side and thus hold withinsaid bearings the pintles of the door D which are inserted thereinbefore uniting the two parts of the frame for. use.

By making the frame in two parts as represented and uniting them bymeans of bolts or screws they may be readily separated for shipment andstorage.

On the inner wall of the quadrangular frame A- is a stud s which iseither cast solid with the frame or may be formed separately and thenunited to said frame by means of the same bolt which is used on thatside to unite the two parts of the frame for use. This stud s isprovided so as to form a stop to limit the inward movement of the door-D and hold it at substantially a right angle to the front of theface-plate, so that the stop or tongue h on the outer side of the door-D will lie in the path of a stove pipe projected through the opening inthe same, and stop a stove pipe at the proper position to insure thebest draft when said stop his thrown out at right angles to the door -Das shown in Fig. 2 of the drawings.

At the lower side of the quadrangular frame A I provide the two legseewhich serve to properly support the whole while it is being brickedinto the chimney for use, said studs being shown in dotted lines in Fig.1, and in full lines at Fig. 3.

From an inspection of Fig. 2 it will be seen that the door D is providedwith a spring held in hinge fashion. Lever or tongue hwhich is providedwith pintles p is held by bent ears of the spring or plate n in suchposition that when it is opened at right angles to the door -D- it willlie in the path of a stove pipe thrust into the opening provided for itsreception, and will be held in position so as to prevent an excessiveinward movement thereof so as to interfere with the draft of thechimney. Forming the stop or tongue -hof sheet metal allows me to closethe same into the face of the door when itis shut and causes the same tolie flat and not project into the room in an unsightly manner as is thecase Where the equivalent of the tongue is in a rigid piece cast to thedoor D as I have sometimes made it.

It will be apparent that the frame A- may be used with face platesprovided with holes for the stove-pipe of different diameter and it isonly necessary to provide one set of patterns for the said frame andhave as many patterns for the face plate as may be required by thevarying sizes of the openings intended to be left for stove pipes ofdifferent diameters. I I am aware that flue-caps provided with pivotedgravity bales to limit the inward thrust of a stove pipe projectedthrough the opening intended therefor are not new, and also that astove-pipe thimble provided with a reducing ring and ventilatorcover,,each provided with catches or pins, which catch or engage with aperforation of the stove-pipe at its upper side, for the purpose ofretaining the stove-pipe in a predetermined position,isnot new. These Ido not seek to claim, but

What I claim, and desire to secure by Letters Patent, is-- 1. In a fluecap, the combination of aframe, a thimble door swinging inwardlythereon, and a stop carried by the door capable of outfQr-Iimiting theinward thrust of the ward projection therefrom so as mice in the path ofthe pipe to act as a stop folithe same, substantially as described.

2. In a flue cap, the combination of a frame, a thimble door swinginginwardly thereon, a, stop on the frame arranged to abut against the doorto limit its inward swing, and a stop 5 carried by the door capable ofoutward prol jection therefrom so as to be in the path of the pipe toact as a stop for the same substantially as described.

3; In a flue cap, the combination of a frame, a thimblddoor swinginginwardly. thereon, and-a stop, pivotally supported on the door, P P

substantially as described.

4:. In a flue cap, the combination of a frame, a thimble door swinginginwardly thereon, and a stop, spring-supported on the door, for limitingthe inward thrust of the pipe, substantially as described. In testimonywhereof I have hereunto my hand this 28th day of October, 1891.

FREDERICK E. HEINIG.

set 50 Witnesses A. H. JACKSON, W. F. TURNER.

